Roller-bearing cage.



J. A. PER'KiNS. ROLLER BEARING CAGE.

APPUCAUON ElL-ED JAN. 14, I913. RENEWED APR. 14.1916.

zawsx Patented Nova 21, 1916.

WEEED @TATES PATENT. OFFICE.

JULEUS A. PERKINS, OF NEW YORK, N. Y.

ROLLER-BEARIN G CAGE.

meager.

Specification of Letters Patent.

Patented Nov. 21, 1916:

Application filed January 14, 1913-, Serial No. 741,906. Renewed April14, 1916. Serial No. 91,265.

To all whom it may concern Be it known that I, JULIUS A. PERKINS,a'cit-izen .of the United States and residing at New York, in the.county of New York and State of New York, have invented certain new anduseful Improve" ments in Roller-Bearing Cages, of which the following isa specification, such as will enable those skilled in theart to which itappertains to make and use the same.

This invention relates to roller bearings and has more especialreference to rollers and the guiding cages thereof which are adapted foruse in limited spaces with a maximum load carrying capacity. It bearssome resemblance to several other forms shown in co-pendingapplications, particularly to that form shown in my application forLetters Patent of the United States bear- .ing date of Dec. 10, 1912,Serial No. 735,900.

but with the distinction that, in the present form, I am enabled toemploy a roller of greater length for the same cage length, therebyincreasing the load capacity very materially.

In the forms already disclosed, each of which serves its purposes, Iprovide recesses in the cage end plates for the roller end cups andwhich extend only partially through the said end plates, but in thepresent form I extend the said recesses, in the form of circular bores,entirely through the end plates, thus permitting the roller cup faces tobe approximately flush with the outer surfaces of the end plates,suitable means, such as a head or the like, being provided to retain thecups in the bores against passage therethrough, thereby permitting theuse of vvery thin end plates and a correspondingly increased rollerlength for a fixed cage length and, while I have shown the invention inconnection with a flanged roller and specific bearing members, I do notconfine myself to this or. any other form.

' My invention is fully set forth in the fol-. lowingspecification, ofwhich the accomof America,

the line 2-2 of .Fig. 1; Fig. 3 is an enlarged,

fragmentary, section taken on the line 3-3 of 1* 1gs. 1 and l; and Fig.4 is a section taken on the line l'i of Fig.

In the drawings forming a part of this application I have shown a rollerguiding cage comprising end plates a and (i joined, in the presentshowing, by ribs Z) formed of portions integral with corresponding endplates, the cage elements being locked together by means of rivets c orsuitable equivalent, but I' merely may be employed, as the exactconfiguration of the recesses is not an essential to this invention, aslong as the roller cups are prevented from escaping.

Resting in each of the recesses (Z is a hardened cup 6, serving as araceway for a series of balls 6 interposed between the rollers f and thecups, said balls being arranged about the end pintles f of the rollers,thus taking the roller endwise movement and any abnormal roller movementanti-frictionally and maintaining the rollersin exact alinement at alltimes.

The rollers f, in the form shown, are each provided with a flange fintermediate the ends thereof, said flanges moving 1n grooves k and k ofa configuration similar to the flanges, in the inner and outer bearingmem-' bers [1, and (i respectively, said bearing members being formed oftwo parts, each, to enableassembling of the flanged rollers therein, andsaid parts are held together by means of flanged rings 2' and 7?,respectively, saidrings being flanged in the operation of assembling thebearing members but,

while this showing provides a perfectly satisfactory combinationundercertain condie .tions, I do not limit myself'to any specificbearingmember, roller, or cage construction, other than such a combination andcon refer to this cage construction -for convenience of description, as

struction of the'cage end plates which pervery thin cage end plates and,consequently,

% an increased length of roller therebetween, thereby 'materiallyincreasing the load bearing capacity of the rollers, in a cage of givenlength, over that of the length of roller possible in the applicationreferred to, and without any sacrifice of the advantages possessed bythe latter form.

In practice, I prefer to provide a groove a in the periphery of each ofthe recesses (Z which shal be open to both the'inner and outer surfacesof the end plates to permit a clearance of any refuse or otherobjectionable matter which might enter between the cups and the endplates, and I may, as shown, employ a plurality of the said grooves ateach recess, but arranged preferably away from the radial line of thecage itself, to avoid weakening the end plates and, while not shown, Iprefer to make'the grooves slanting or spiral to assist in suchclearance, particularly in the grooves near- Y est the cage end plateperipheries, where centrifugal action assists in the operation of I dirtremoval. v

It'will thus be seen that not only do I permit the use of rollers of thegreatest possible'length for a. cage of given length, but I also provideanti-frictional roller guiding means and hardened raceways for the saidmeans within but distinct from the cage end plates, thus permitting thecage to be of relatively soft material and,- further,

any objectionable matter Whichmi'ghttend to injure the cups or endplates, or interfine with free operation, thus producing a; thoroughlyractical bearing for certain purposes, an

and the bearing members.

Having fully described my to by Letters Pat is I pro vide means forinsuring theready egress of In testimonywhich,'in the form shown, is,also self-conta-ined as'to' the cage of rollers invention, what I claimas new, and desire to secure end plates andconnecting ribs, rollers carried by said cage and provided, each, with end pintles, and a guidingcup for each end of each of said rollers, said cage end plates beingprovided with bores therethrough in the position of each roller end toreceive loosely, a corresponding guiding cup, saic' bores being of lessdiameter on the'outer surfaces of said end plates than on the. in nersurfaces.

2. A cage for roller bearings, comprising end plates and connectingribs, rollers carried by said cage and provided, each, with end pintles,and a guiding cup for each end of each of said rollers, said cage endplates being recessed in the position of each roller end ,to receive,loosely, a corresponding' guiding cup and said guiding cups beingsubstantially flush with, the outer surfaces of said end plates.

3. A cage for roller bearings, comprising end plates and connectingribs, rollers car ried by said cage and provided, each, with endpintles, and a guiding cup for. each 7 roller end, said cage end platesbeingprovided with bores thereth'rough in the position of each rollerendto receive, l0osely,' a corresponding cup, and being also provided witha groove at the periphery of each of said bores, to-permit the escape offoreign matter whichv might enter between said cups and end plates; 7

4. In a bearing provided witha; cage, rollers th'erein, and end pin-tleson said rollers; acup on each of said pintles, anda series of ballsinterposed between said rollers and cups, said cage being provided withbores in the positions of said cups to receive the same, loosely, and ofless diameter on the; 90

outer surfaces of the cage. end plates than- ,on' the inner surfaces toprevent-the escape of said cups.

I claim the foregoing asm-y invention I 9th day of January,-1913;

Juians A. PEsKiNs.

I Witnesses: I i

J20, Leeann,- J. A. Disna'rons.

have' signed my name in presenceof' the subscribingkwltncsses this.

